Definition: You are given a question on nutrition. You are also given 4 answer options (associated with "A", "B", "C", "D"), out of which only one is correct. You need to answer the question by selecting the correct option. You should only answer with the choice letter, not the whole answer.
Input: What is the immediate source of chemical energy that can be used by skeletal muscle tissue to allow muscle contraction?

(A)glucose (B)ADP (C)ATP (D)AMP

C